/Engine/Source/Runtime/Engine/Classes/Sound/SoundSubmix.h
Finish recording the audio from this submix and export it as a wav file or aUSoundWave.
void StopRecordingOutput ( const [UObject](API\Runtime\CoreUObject\UObject\UObject) * WorldContextObject, EAudioRecordingExportType ExportType, const [FString](API\Runtime\Core\Containers\FString) & Name, [FString](API\Runtime\Core\Containers\FString) Path, [USoundWave](API\Runtime\Engine\Sound\USoundWave) * ExistingSoundWaveToOverwrite )